Gc/ms arrangement and mass spectrometer

Abstract

A GC / MS arrangement, comprising: a GC unit; an MS unit; a transfer line fluidly connecting the GC unit and the MS unit a carrier gas valve for selectively supplying carrier gas to the transfer line; at least one monitoring unit associated with the MS unit for monitoring at least one operational condition of the MS unit; and a controller connected to the at least one monitoring unit and carrier gasvalve, configured to close the carrier gas valve when a predetermined operational event is detected by the at least one monitoring unit.

Description

technical field [0001] The present invention relates generally to mass spectrometers. More specifically, one aspect relates to safety devices for mass spectrometers, and another aspect relates to safety devices for GC / MS devices. Background technique [0002] Gas chromatography (GC) is a well-known analytical separation technique. Place the column containing the stationary phase in the GC oven. The sample is introduced into the column along with the mobile phase (carrier gas) and heated by the GC oven. The sample interacts with the stationary phase in the column, and the components of the sample elute from the end of the column at different rates depending on their chemical and physical properties and affinity to the stationary phase. [0003] It is known to interface a GC unit with a mass spectrometer (MS) unit (so-called GC / MS devices) for analyzing the separated components of a sample. The GC and MS units can be separate instruments and thus usually have their own pow...

AI Technical Summary

Problems solved by technology

Ultimately, concentrations may be too high to pose a significant risk

[0006] While approaching the GC / MS unit, the operator may attempt to reset or otherwise re-establish power to the MS unit, which could create an ignition source for the hydrogen in the chamber of the MS unit, resulting in an explosion

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